package cn.tedu._05weibo.controller;

import cn.tedu._05weibo.commen.response.JsonResult;
import cn.tedu._05weibo.commen.response.StatusCode;
import cn.tedu._05weibo.mapper.UserMapper;
import cn.tedu._05weibo.pojo.dto.UserLoginDTO;
import cn.tedu._05weibo.pojo.dto.UserRegDTO;
import cn.tedu._05weibo.pojo.entity.User;
import cn.tedu._05weibo.pojo.vo.UserVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;
import springfox.documentation.annotations.ApiIgnore;
import springfox.documentation.spring.web.json.Json;

import javax.servlet.http.HttpSession;
import java.util.Date;

@Api(tags = "01.用户模块")
@Slf4j
@RestController
@RequestMapping("/v1/users/")
public class UserController {

    @Autowired
    private UserMapper userMapper;

    /**
     * 1.注册功能
     */
    @ApiOperation("注册功能")
    @PostMapping("reg")
    public JsonResult reg(@RequestBody @Validated UserRegDTO userRegDTO) {
        log.debug("userRegDTO = " + userRegDTO);
        UserVO userVO = userMapper.selectByUsername(userRegDTO.getUsername());
        if (userVO != null) {
            return new JsonResult(StatusCode.USERNAME_ALREADY_EXISTS);
        }
        User user = new User();
        BeanUtils.copyProperties(userRegDTO, user);
        user.setCreated(new Date());
        userMapper.insert(user);
        return JsonResult.ok();
    }

    /**
     * 登录功能
     */
    @ApiOperation("登录功能")
    @PostMapping("login")
    public JsonResult login(@RequestBody UserLoginDTO userLoginDTO, @ApiIgnore HttpSession session){
        log.debug("userLoginDTO = " + userLoginDTO);
        UserVO userVO = userMapper.selectByUsername(userLoginDTO.getUsername());
        if(userVO.getPassword().equals(userLoginDTO.getPassword())){
            //设置唯一标识,用于会话保持
            session.setAttribute("user",userVO);
            return new JsonResult(StatusCode.LOGIN_SUCCESS);
        }
        if (userVO == null){
            return new JsonResult(StatusCode.USERNAME_ERROR);
        }
        return new JsonResult(StatusCode.PASSWORD_ERROR);
    }
    /**
     * 3.获取当前用户的功能
     */
    @ApiOperation("获取当前用户")
    @GetMapping("currentUser")
    public JsonResult currentUser(@ApiIgnore HttpSession session){
        UserVO userVO = (UserVO) session.getAttribute("user");

        return JsonResult.ok(userVO);
    }
    @ApiOperation("退出登录")
    @GetMapping("logout")
    public void logout(@ApiIgnore HttpSession session){
        /*删除服务器端的会话唯一标识*/
        session.removeAttribute("user");
    }

}






